After a stormy household scene with her lover, the playwright and actor Michel Desnoyer, the beautiful Ecaterina decides to break up and leaves the premises. Shortly after, Michel receives a visit from Françoise and her husband Fernand, returning from a long stay in the United States. As the director of the theater asks him for a new play, Michel thinks of staging the story of his affair with the fiery young woman. To play his former mistress, he hires Françoise, who has always dreamed of getting on the stage, as well as her titular servant, Maria, to play his maid. The decor of the room will be an exact reproduction of the writer's office. The evening of the premiere, Michel receives death threats. Ecaterina sent them to him and is in the room. Arguing that a playwright does not have the right to tell everyone his affairs of the heart, she continues to question him during the performance and causes a scandal.